Type informationType locality: western shores of England (Stackhouse 1797: 53, pl. 12). Type: Stackhouse; Notes: The name has been typified with Stackhouse’s description in Withering (1797: 99); the original specimens have not been found. The figure in pl. 12 of Stackhouse (1797) could serve as a lectotype.

Origin of species nameAdjective (Latin), stellate, with narrow divisions radiating from the center like the rays of a star (Stearn 1973).